finally building!
I know your in a hurry and have limited funds, but do not put that together without the cyl's cleaned up with boring and hone job, or just honed if bores check out okay. If you dont have the financing to rebuild it the correct way, then dont tear it down as if you do have the money.... Tearing things apart and simply putting different parts in it isn't the right thing to be doing... It will most definatley cost you more money in the end and you will be fighting it the entire time trying to get it to run, and wondering why...
I'm a RB engine guy myself, and I can promise you you'll be sorry you didn't do it the right way the first time!
Heck, even if you have this one all tore down, it would be cheaper to find another used "running" 440 to just hose off at the carwash and rattle can some orange paint on it and set it down in the car..... Build the other engine as funding is available.